f(x) = 526 -515. (A) Find all critical values of f, compute their average, and enter it below. Note: If there are no critical values, enter -1000. Average of critical values = (B) Use interval notation to indicate where f(I) is increasing. Note: Enter "I' for co, '-I' for -oo, and 'U' for the union symbol. If you have extra boxes, fill each in with an 'x'. Increasing: (C) Use interval notation to indicate where f(I) is decreasing. Decreasing: (D) Find the r-coordinates of all local maxima of f, compute their average, and enter it below. Note: If there are no local maxima, enter -1000. Average of z values = (E) Find the r-coordinates of all local minima of f, compute their average, and enter it below. Note: If there are no local minima, enter -1000. Average of z values = (F) Use interval notation to indicate where f(I) is concave up. Concave up: (G) Use interval notation to indicate where f(r) is concave down. Concave down: (H) Find all inflection points of f, compute their average, and enter it below. Note: If there are no inflection points, enter -1000. Average of inflection points =